The answer is D. Collett E. Woolman. Woolman is one of the original directors of the airline. He bought the company on September 13, 1928, renamed it to Delta Airlines. The company started its service in 1929 with an inaugural flight between 4 states.
Answer:
i believe it is D
Explanation:
because a weak mayor system would mean that 0 power is in the mayors hands
strong mayor system would be the opposite- where all power resides in the mayors hands
a speacial purpose system would basically mean that each power holds a different purpose
and a council manager system means that tye power only has control over the council...and the council is one of the powers
Answer:
B. The study is an observational study because the study examines individuals in a sample comma but does not try to influence the response variable.
Explanation:
Observational studies are studies in which the researchers try to observe the effect of a diagnostic test, treatment, and risk factor without making any change in who is exposed to it and vice-versa. In the observational study, the researcher collect data based on what is heard and seen. In the observational study, the researcher has no control over the variables.
There are three types of observational studies:
1. Case-control studies
2. Cohort studies
3. Cross-sectional studies.
Answer:
A, B, and D.
Explanation:
The correct answer is option A, B, and D.
Astronomical telescope is a device which is used to observe distant heavenly bodies like stars, planets,sun,satellites, and etc.
when the size of the lens decreases the chromatic aberration is minimized.
Large astronomical telescopes are reflectors because chromatic aberration is minimized, they are shorter in size and they are also not heavy.
Answer:
Option D.
Explanation:
Businesses earn their revenues from households, is the right answer.
In economics, the circular flow model is a model to explicates money flow throughout an economy. The circular flow of income between the household and business sector is the most common form of this kind of model. This model outlines all of the participants in an economy as either firms or households and it distributes markets into two different divisions known as the:
Markets for goods and services
Markets for factors of production
